24 x construction of plinth:-supply of brick masonry structure / supply of building material for one plinth:- ( a ) cement bags opc / ppc confirming to is-1489 ( part-i ) 1991 with amendment no 1 to 3 packed in hdpe bag of 50 kg each confirming to is 11652 / 2000 ( make - ambuja / birla / ultra tech / jaypee / banger / acc / j lakshmi / binani ) ( b ) sub class b bricks of 1st class quality of size 230 x115x75 mm. bricks shall have crushing strength of not less than 75 kg / sq cm . water absorption shall not be more than 20%. ( c ) sand conforming to is -383-1970. the sand shall be hard, dense, strong, durable, clear and free from veins, adherent coatings, disintegratd pieces, alkali, vegetable matters and other deleterious substances. ( d ) fine sand conforming to is -383-1970. the sand shall be hard, dense, strong, durable, clear and free from veins, adherent coatings, disintegratd pieces, alkali, vegetable matters and other deleterious substances. ( e ) graded stone aggregate of size 10-20 mm confirming to is -383-1970 ( f ) graded stone aggregate of size 20-40 mm confirming to is -383-1970 ( g ) graded stone aggregate of size 40-63 mm confirming to is -383-1970 ( h ) cement base paint ( make : snowcem / durocem ) / provision of tool and plant:- ( a ) tipper for soil filling ( b ) painting brush 4 ( c ) water level pipe 30 m long superior quality ( d ) hiring of mixture machine ( e ) scantling of hard wood 50 mm x 40 mm, 2.40 m long for frame work ( f ) measuring tape 30 mtr metalic ( g ) measuring tape 5 mtr metalic ( h ) mason tread ( j ) trawel brick ( k ) bucket steel 13 ltr ( l ) mortar pan ( tasla ) ( m ) plaster planer iron ( n ) square pipe aluminium 25 x 50 mm, 5 long ( o ) nails various sizes